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Java > Open Source Codes > org > objectweb > speedo > workingset > api > Transaction


1 /**
2  * Speedo: an implementation of JDO compliant personality on top of JORM generic
3  * I/O sub-system.
4  * Copyright (C) 2001-2004 France Telecom R&D
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  *
21  *
22  * Contact: speedo@objectweb.org
23  *
24  * Authors: S.Chassande-Barrioz.
25  *
26  */
27 package org.objectweb.speedo.workingset.api;
28
29 import org.objectweb.perseus.persistence.api.PersistenceException;
30 import org.objectweb.perseus.persistence.api.TransactionalWorkingSet;
31 import org.objectweb.perseus.persistence.api.ConnectionHolder;
32
33 import javax.jdo.JDOFatalException;
34
35 /**
36  * This interfaces defines the transaction concept in Speedo. It is based on a
37  * working set represented by the inheritance of the TransactionalWorkingSet
38  * interface, and the required javax.jdo.Transaction interface.
39  *
40  * @author S.Chassande-Barrioz
41  */
42 public interface Transaction
43         extends javax.jdo.Transaction, TransactionalWorkingSet {
44
45     /**
46      * It activates the working set. This is used to delimit the begining of
47      * the working set.
48      */
49     void active() throws PersistenceException;
50
51     /**
52      * Indicates if the transaction environnement is managed. If the 'false'
53      * value is returned then that means that a user transaction matches to
54      * a local transaction managed by speedo.
55      */
56     boolean isManagedEnv();
57
58     JDOFatalException rollBackOnInternalError(Exception JavaDoc e);
59
60     /**
61      * Assignes the connection holder. The connection holder is able to allocate
62      * a connection to the underlying data support and to kept it until the
63      * working set / transaction end.
64      */
65     void setConnectionHolder(ConnectionHolder ch);
66 }
67
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